subsample {adehabitat} | R Documentation |
This function subsamples a regular trajectory (i.e. changes the time lag between successive relocations).
subsample(ltraj, dt, nlo = 1, units = c("sec", "min", "hour", "day"), ...)
ltraj |
an object of class ltraj |
dt |
numeric value. The new time lag (should be a multiple of
the time lag in ltraj ) |
nlo |
an integer, or a vector of integers (with length equal to
the number of bursts in ltraj ), indicating the position of
the first location of the new bursts in the old bursts. For
example, if the previous time lag is equal to 300 seconds and the
new time lag is 900 seconds, the new bursts may begin at the first,
second or third relocations of the old bursts in ltraj . |
units |
character string. The time units of dt |
... |
additional arguments to be passed to other functions |
An object of class ltraj
Clement Calenge clement.calenge@oncfs.gouv.fr
ltraj
for additional information on objects of
class ltraj
, is.regular
for regular trajectories.
data(capreotf) plot(capreotf) toto <- subsample(capreotf, dt = 900) plot(toto)